html,body{
  height: 100%;
}
ul,li{
  list-style: none;
  padding: 0;
  margin: 0;
}
.lt-layout{
  width: 100%;
  height: 100%;
  max-width: 640px;
  min-width: 320px;
  background-color: #fff;
  margin: 0 auto;
  position: relative;
  padding: 45px 0 55px 0;
  .lt-header{
    height: 45px;
    width: 100%;
    background-color: #006699;
    position: absolute;
    left: 0;
    top: 0;
    padding: 0 45px;
    h4{
      color: #fff;
      text-align: center;
      line-height: 45px;
      width: 100%;
      margin: 0;
      font-weight: 400;
      font-size: 20px;
    }
    a{
      position: absolute;
      left: 0;
      top: 0;
      width: 45px;
      height: 45px;
      display: block;
      color: #fff;
      text-align: center;
      line-height: 45px;
      font-weight: 700;
    }
    .search{
      left: auto;
      right: 0;
    }
  }
  .lt-main{
    position: relative;
    width: 100%;
    height: 100%;
  }
  .lt-footer{
    height: 55px;
    width: 100%;
    background-color: #006699;
    position: absolute;
    left: 0;
    bottom: 0;
    ul{
      width: 100%;
      li{
        width: 25%;
        float: left;
        a{
          width: 100%;
          display: block;
          color: #fff;
          text-align: center;
          font-size: 14px;
          margin-top: 5px;
          span{
            display: block;
            font-weight: 700;
          }
        }
      }
      .current a{
        color: orange;
      }
    }
  }
}